1420534505 has 16 divisors (see below), whose sum is σ = 1849179024. Its totient is φ = 1041346560.

The previous prime is 1420534477. The next prime is 1420534519. The reversal of 1420534505 is 5054350241.

It can be written as a sum of positive squares in 8 ways, for example, as 292649449 + 1127885056 = 17107^2 + 33584^2 .

It is not a de Polignac number, because 1420534505 - 2¹² = 1420530409 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70856 + ... + 88665.

It is an arithmetic number, because the mean of its divisors is an integer number (115573689).

Almost surely, 2^1420534505 is an apocalyptic number.

It is an amenable number.

1420534505 is a deficient number, since it is larger than the sum of its proper divisors (428644519).

1420534505 is a wasteful number, since it uses less digits than its factorization.

1420534505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159676.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1420534505 is about 37689.9788405353. The cubic root of 1420534505 is about 1124.1318747956.

Adding to 1420534505 its reverse (5054350241), we get a palindrome (6474884746).

The spelling of 1420534505 in words is "one billion, four hundred twenty million, five hundred thirty-four thousand, five hundred five".